A correlated subquery refers to a column of a table that is not in the FROM clause of the query. The column can appear in both the Projection and the WHERE clauses. Correlated subqueries, in general, degrade performance.
Learner's Ratings
4.5
Overall Rating
72%
17%
6%
0%
5%
Reviews
P
Priya Kushwaha
5
Very Good trainer
C
chanchal singh
5
you guys are doing nice job. thanks
U
Umesh Wankhede
5
Not too much interactive
M
Monesh Ram
5
Well Explained in Every Chapters..
G
GAJANAN DIGAMBAR MODE
5
very easy to understand SQL its was dream to learn SQL. Thanx for Learnvern
M
Mohmad Shadab
5
BEST VIDEOS
N
NAGASWETHA
5
very useful
M
mohd aamir
4
Hi Team,
Why you didn't teach/learn how to write select query, even you shared 15 question for practice :(
Y
Yashvant Kadwe
5
I have found the course to be interesting with plenty of valuable information provided as part of the course and through interaction with fellow teachers and trainers from a wide range of disciplines
Share a personalized message with your friends.